/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: qian
 * Date: 2023-04-13
 * Time: 10:36
 */
class ListNode {
    public int val;
    public ListNode next;
    public ListNode(int val){
        this.val = val;
    }
}
public class MyLinkedList {
    public ListNode head;
}
